in norfolk, the navy ordered 23 ships to leave port immediately. on the jersey shore, people are stocking up on essentials, including those generators. and in new york city, major bloomberg warned he may have to shut down the subway because it might flood. >> there is a possibility that the mta would have to stop serving, remove their buses and trains. >> reporter: the storm is also wreaking havoc on the presidential race, with the candidates already beginning to cancel events. it has all the makings of a nightmare before halloween. for "nightline," i'm ginger zee in cocoa beach, florida. >> our thanks to ginger zee. "gma" will have the latest in the morning. >>> but now, we turn to our special report, a rare look inside the secret world of the kkk. for those of you who think burning crosses and hooded rallies are relative of the civil rights era, think again. hate groups in america have doubled in the past decade and it may surprise you who is among their ranks and what their agenda is. inside the new kkk. >> forward, march. >> reporter: in a fore